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Finding the Fourth Proportional to 12,873.53, 17,760.26 and 7,833.71

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Solution

The fourth proportional to 12,873.53, 17,760.26 and 7,833.71 is: 10,807.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,873.53 : 17,760.26 = 7,833.71 : x
  2. Step 2: Convert to fraction form
    12,873.53/17,760.26 = 7,833.71/x
  3. Step 3: Cross multiply
    12,873.53x = 17,760.26 × 7,833.71
  4. Step 4: Simplify right side
    12,873.53x = 139,128,790.35
  5. Step 5: Solve for x
    x = 139,128,790.35/12,873.53
  6. Step 6: Final answer
    x = 10,807.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.